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Citation: Li Wen-Ying, Huang Rong-Bin, Zhuang Ma-Zhan, Ding Shao-Ping, Zheng Lan-Sun. Mass Spectrometry of Laser Generated Negative Carbon Cluster Ions[J]. Acta Physico-Chimica Sinica, ;1990, 6(03): 257-258. doi: 10.3866/PKU.WHXB19900301 shu

Mass Spectrometry of Laser Generated Negative Carbon Cluster Ions

1.
Chemistry Department, Xiamen University

Received Date: 3 January 1990
Available Online: 15 June 1990

Negative carbon cluster ions were generated on a conventionally made laser probe time-of-flight mass spectrometer. The mass spectra showed an even/odd alternation of the cluster ion intensities with cluster size up to 12, indicating a chain configuration. For cluster anions larger than 12, the ions containing 4m+1 carbon atoms have higher concentrations in the cluster anion beam, and a cyclic model can explain the observation very well. We therefore conclude that the chain-ring transi-tion occurs at n=12.
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